hello!

i am creating a midibox seq and speakjet, and in the future i want to make a magic midi delay.  i got into electronics in late 2006 so i could build a midibox seq.  i've enjoyed working with electronics so much that i'm now going to college to study electrical engineering.

so far i've completed everything but the case/panel for my seq.  i will post pictures here when i'm done with it, as well as information that might help others who are building the same.

i have also begun work on a midibox speakjet.  i'm going to take pictures and post them here as i go, with information about how i've completed the project.

==== MIDIBox SpeakJet IIC ====

to create this project, i decided to etch a board using radio shack's pcb making kit (i know, i can find the stuff cheaper, elsewhere).
audiocommander's board layout is pretty easy to follow ([[http://www.audiocommander.de/downloads/midibox/mbhp_iic_speakjet_13.board.pdf]]).

to make this easy, take the following steps:

  * take a piece of perfboard and draw audiocommander's reversed layout grid on it.
  * based on the reversed layout image that shows only components, mark each hole that needs to be drilled.
  * clamp the perfboard to the top of the copper pc board and use a 1/32" drill bit to drill out each hole using a press.  for holes where an idc header will go,  redrill using a 3/64" drill bit (these were out of a dremel bit kit i got for $7).
  * draw the traces using a sharpie.  i just used a ruler for this and audiocommander's reversed layout image that shows the components.
  * after that all you need to do is etch!

the results turn out pretty clean

{{http://www.sub-version.net/diy/images/sjpcb.jpg}}

using the perfboard as a guide helps things match up very well

{{http://www.sub-version.net/diy/images/sjpcblayout.jpg}}